longest.chain: find out the food chain with longest length among all food...

In loop: loop decomposition of weighted directed graphs for life cycle analysis, providing flexbile network plotting methods, and analyzing food chain properties in ecology

Description

Sometimes the longest chain is not unique, thus will return all candidates with longest length

Usage

longest.chain(gemat, sp)

Arguments

gemat	standard square graph matrix
sp	the node/species you want to search

Author(s)

Youhua Chen <[e-mail]>

References

Chen Y (2012) loop: an R package for performing decomposition of weighted directed graphs, food web analysis and flexible network plotting. Submitted.

See Also

shortest.chain, largest.weight, smallest.weight, lclw

Examples

#mat=matrix(c(0,5,3,7,0,5,0,8,0,4,3,8,0,1,6,7,0,1,0,2,0,4,6,2,0),5,5)
#search for species 3
#lclw(gemat=mat,sp=3)
#longest chain isn't necessary to have largest weights
#largest.weight(gemat=mat,sp=3)
#longest.chain(gemat=mat,sp=3)

loop documentation built on May 2, 2019, 9:07 a.m.